Lily Aldridge teased her Twitter fans with a picture of her baby girl's feet in July, but on August 18, the Victoria's Secret supermodel finally unveiled the first photo of Dixie Pearl via the social networking site.

"Glad everyone liked our family pic," she wrote in a follow-up tweet. "She's our angel!"

Born in Nashville June 21, Dixie Pearl is the first child for Aldridge, 26, and Kings of Leon frontman Caleb Followill, 30, who wed at San Ysidro Ranch in Montecito, Calif. in May 2011. "They are so happy," a source recently Us Weekly of the new parents. "The baby is adorable and healthy. . . Caleb seems to really be enjoying fatherhood."

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When she's not busy tending to her newborn, Aldridge is working hard to get her post-baby in runway ready shape. "Just had an amazing workout!" she tweeted August 8. "So intense!"

Caleb's bandmate and brother, Nathan, 33, recently announced he and his singer/songwriter wife, Jessie Baylin, 28, are expecting their first child this December. "They are two of the most excited people I know," the band's rep told Us in June.

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